Light tunnel



FIG. 1 is a front, right side, bottom perspective view of the lighttunnel of the present invention with a floor and handrails shown inbroken lines to show the light tunnel in an installation for use;

FIG. 2 is a front, left side, top perspective view thereof;

FIG. 3 is a left side perspective view thereof, the right and left sidesbeing mirror images;

FIG. 4 is a front, right side, bottom perspective view of a singleelement of the light tunnel of FIGS. 1-3;

FIG. 5 is a front view thereof;

FIG. 6 is a front, right side, top perspective view thereof;

FIG. 7 is a left side perspective view thereof, the right and left sidesbeing mirror images;

FIG. 8 is a view as in FIG. 1, without the floor and handrails;

FIG. 9 is a view as in FIG. 2, without the floor and handrails; and,

FIG. 10 is a view as in FIG. 3, without the floor and handrails, theright and left sides being mirror images.

Elements shown in broken lines form no part of the claimed design.

CLAIM The ornamental design for a light tunnel, as shown and described.